Valve.



S. DAVIS. VALVE. APPLIGATION HLBD APB. z2. 1909.

Patented Apr.26, 1910.

SIDNEY DAVIS, OF LANKERSHIM, CALIFORNIA.

VALVE.

Specification of Letters Patent.

Patented Apr. 26, 1910.

Application filed April 22, 1909. Serial No. 491,491.

To all whom it may concern.:

Be it known that I, SIDNEY DAVIS, a citizen of the United States,residing at Lankershim, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Valves, ofwhich the following is a specification.

My invention relates primarily to that class of valves employed inirrigation systems by which the flow of water through irrigation pipelines and stand pipes attached thereto may be controlled, and a basicobject of my invention is to provide a valve that is simple inconstruction, efficient in operation, and by means of which the flow owater from stand pipes and irrigation pipe lines may be readilycontrolled.

A further object of my invention is to provide a valve, whereby thevolume of water passing through a pipe line may be accurately regulated.

I accomplish these objects by means of the device described herein andillustrated in the accompanying drawings, in which z- Figure 1 is a sideelevation of an irrigation pipe line provided with a stand pipe andequipped with my valve. Fig. 2 is a central vertical section through thestand pipe showing the valve connected thereto. Fig. 3- is a top planview of the valve, the valve gate being shown in a partially openposition.

In irrigating ranches and orchards by modern irrigation methods, variousvalves have been constructed for use on stand pipes of irrigating pipelines for the purpose of controlling the flow of water therefrom. Inmost of these constructions no provision is made, whereby temporary pipelines may be attached prior to opening the valve, thus necessarilywetting the operator and causing discomfort. By means of my improvedvalve a temporary pipe line may be attached prior to the operation ofthe valve, thus materiall contributing to comfort and convenience o theoperator.

In the embodiment of my invention, 5 designates an irrigation pipelineof usual construction, and 6 a stand pipe preferably formed integrallytherewith. The valve casing is formed of cast metal and is preferablydivided into an upper half 7 and a lower half 8, each provided with anexternal flange 9 and l0, through which bolts pass to maintain them inliquid tight 'relation to each other, a gasket 11, being interposed.

Both halves of the valve easing are provided with semi-circular internalflanges 12 and 13, the upper and lower faces when the two halves arebolted together being slightly below the rim to provide for thehorizontal disposition of the valve gate 14, the flanges forming seatsfor the gate. Valve gate 14 is circular in form and is journaled on avalve stem 15, one end of which is mounted in a bearing 16 formed on theexternal flanges of the casing. The other end of the stem passes througha Stuffing box 17 located diametrically opposite bearing 16 andterminates in a handle 18. This handle is provided with a circular diskhavin@ notches 19 formed in the periphery thereof, adapted to be engagedby a latch 2O pivoted in lugs 21 formed on the flange of the upper halfof the casino'. By means of this latch the valve may be maintained inany desired position, efficiently controlling the volume of waterpassing therethrough. The external flange of the upper half of thecasing is provided with a lug 22 in which is mounted a set screw 23adapted to maintain the valve gate in a seated position when closed.

The upper end of the upper half of the valve casing is threadedexternally for the reception of the lower threaded end of a metallicpipe elbow, to which the metallic pipe line (not shown) may be attachedfor temporary irrigation purposes at a distance from the stand pipe.This elbow may be attached to any stand pipe valve casing, doing awaywith the necessity of a multiplieity of elbows.

The stand pipe and gate valve are referably placed below the surface ofthe ground to protect them from injury, being inclosed by a wooden boxor casing 24 having a cover 25.

By forming the valve casing of complemental parts, I am enabled toquickly assemble the parts of the valve and readily replace the partsthat may become worn or broken.

It will be observed that the valve may be used in various othersituations, such as branch pipe lines leading from main lines, and alsoin sewer connections.

It will be apparent from the above description that I have provided asimple form of gate valve that will admirably subserve the functionsimposed upon it in a highly efficient and satisfactory manner.

Having described my invention what I "E K 955,948 l claim as new anddesire to secure by Letters its closed position7 and means to'f rigidlyPatent is maintain the gate from movement When 1n A gate valve,comprising two cylindrical a partially opened position. casings adaptedto be rigidly secured to- In Witness that I claim the foregoing 1'15gether, the inner surface of each casing at have hereunto subscribed myname this 16th their Contacting ends being provided With day of April,1909.

a semieireular valve seat a flat valve Ofate pivotally mounted betweehsaid oasingsthe SIDNEY DAVIS flat surfaces of the valve gate contactingWitnesses:

with the valve seats When the gate is in its EDMUND A. STRAUSE,

closed position, means to lock the gate in T. L. MEAD, Jr.

